Systems and methods for distributing real-time site specific weather information

ABSTRACT

A system for providing real-time site specific weather information comprises a weather alert manager that receives meteorological data and combines the meteorological data with a geographical grid covering a predefined geographic area to produce a storm profile for the storms within the geographical area, wherein the geographic grid partitions the geographic area into a plurality of cells. A distribution network distributes the storm profiles to remote units that are responsive to the storm profiles. The remote units are configured to process the storm profiles and present real-time site specific weather information based upon the storm profile. The storm profiles may include a cell identifier that identifies a cell of the geographic grid that is affected by the storm. In addition, the storm profiles may further include a storm identifier, a storm type identifier, and a presence qualifier associated with each cell identified.

RELATED APPLICATIONS

This application claims the benefit of United States Provisionalapplication Ser. No. 60/018,921, filed Jun. 4, 1996, and entitled"SYSTEM AND METHOD FOR SITE SPECIFIC ALERTING FOR TORNADOS".

FIELD OF THE INVENTION

The present invention generally relates to systems and methods forweather reporting and forecasting, and more particularly, tocomputerized systems and methods for reporting and forecasting real-timeweather information.

BACKGROUND OF THE INVENTION

The importance of weather reporting and forecasting in our daily livescannot be contested. A large percentage of the people in the UnitedStates watch their local evening news on a nightly basis to see thelocal weather report and forecast. This information may then used tomake decisions for the next day, or for the upcoming weekend, such aswhat to wear, what activity to participate in, what activity not toparticipate in, what to bring on an outing, etc. Under certaincircumstances, such as in the case of severe weather, some people mayfind themselves in situations where they are making life and deathdecisions based upon the weather information they have available tothem.

To assist local television stations, as well as the national networks,in providing accurate and timely weather reporting and forecasting, theNational Weather Service (NWS) maintains a network of radarinstallations located at approximately one hundred thirty-eight sitesthroughout the United States. Observers at each of these installationsmonitor the weather conditions within their area and provide hourlyteletyped messages to subscribers, typically through a third partyweather service provider such as GTE Contel, a subsidiary of GTEGovernment Systems. In addition, other services provide lightning strikeinformation on a subscription basis, such as through GlobalAtmospherics, Arizona, U.S.A.

The weather information provided by any one or a combination of theabove services may be synthesized at a local television station into aunderstandable format for presentation to the public. In general, themeteorological data is gathered at the local television station andcombined with image maps of a geographical region to generate a weatherimage i.e., a graphical illustration of the weather. In addition, thelocal temperatures for various communities or cities within the viewingarea of the station may also be generated on the weather image. Asequence of these composite weather images can be looped to createweather animation. The local television station may then broadcast theweather images to viewers.

Although the current weather reporting and forecasting systems used bytelevision stations and networks have much benefit, they may not providerelevant weather information during severe weather. This is particularlytrue when it comes to the existence of severe weather which arisesquickly without much warning, as is often the case with tornados. It iswell known that tornados and other types of severe weather can strikequickly without much prior notice. The information provided by thetelevision stations and networks regarding these types of severe weatherare seldom provided in a real-time fashion and are generally notdetailed as to the specific location or direction of the weather front.Therefore, the public is often not given sufficient warning toadequately prepare for the weather in order to protect their property orfind a safe refuge for themselves. Moreover, the weather informationthat is provided is often provided on a county wide basis which,depending on the size of the county, the actual path of the severeweather through a county, and the position of the listeners within thecounty, may be irrelevant. The listener may consequently becomeimpatient or inattentive, and stop viewing the weather report.

An alternative source of weather information is through weather radiossuch as the Realistic Weather Radio Alert III, Model No. 12-140,distributed through Radio Shack®, a division of the Tandy Corporation.In general, weather radios may provide listeners with prerecorded orlive weather updates on an essentially continuous basis. The weatherradios receive the weather information updates which are broadcasts bythe national Weather Service (NWS) from local transmitters usingspecific frequencies designated by the Federal Communication Commission(FCC). The weather updates usually comprise regular weather informationwhich is prerecorded and then broadcast, except for the issuance ofsevere weather watches or warnings. In those cases, a prerecorded (orsometimes live) watch or warning message is preceded by a tone (e.g., a1,000 cycle tone) that is manually activated at the broadcast station.The tone weather radios that are turned on and within the range of thebroadcasted signal may receive the tone which activates an audible alarmon the radio. The audible alarm is typically not distinctive as to thewhether it is for a watch and warning, nor does the audible alarmindicate the type or severity of the severe weather. The alarm willusually continue until the user pushes an alert key or button on theweather radio. It is noted that NWS personnel are responsible for bothmanually recording of the audio messages for broadcast and the manuallyactivating of the tone.

Therefore, a need exists in the industry for an improvement in thedelivery of real-time weather information for a localized area to peoplein that area during times of severe weather.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide morerelevant weather information.

It is another object of the present invention is to provide sitespecific weather information.

It is another object of the present invention is to provide real-timeweather information.

These and other objects are provided in accordance with the presentinvention by a system for providing real-time site specific weatherinformation that comprises a weather alert manager that receivesmeteorological data and combines the meteorological data with ageographical grid covering a predefined geographic area to produce stormprofiles for the storms within the geographical area, wherein thegeographic grid partitions the geographic area into a plurality ofcells. A distribution network distributes the storm profiles to remoteunits that are responsive to the storm profiles. The remote units areconfigured to process the storm profiles and present real-time sitespecific weather information based upon the storm profile. The stormprofiles may include a cell identifier that identifies a cell of thegeographic grid that is affected by the storm. In addition, the stormprofiles may further include a storm identifier, a storm typeidentifier, a list of cells affected by the storm and a presencequalifier associated with each cell identified.

The storm distribution network preferably distributes the storm profilesto the remote units that are associated with the cells affected by thestorm. For instance, a remote unit may receive storm profiles for astorm that is currently located within the present cell, or likely tocross the present cell. The distribution network may include means foraddressing the storm profile to enable point-to-point distribution tothe respective cells associated with a storm. The distribution networkmay comprise a land-line telephone network, a universal wirelessnetwork, a pager network, an Internet, or a local cable televisionnetwork.

In accordance with a feature of the present invention, themeteorological data received by the weather alert manager comprisesindications of the storm's speed, location, direction, and type.Further, the meteorological data may include a severity indicator of astorm. The meteorological data may be provided manually by a user suchas someone from an emergency management agency, or automatically by aNexRad attributes data provider, or a combination of both manually andautomatically gathered weather data.

The remote units may include an audible alarm that can be selectivelyactuated to distinguish between a warning alarm and a watch alarm.Further, the remote units may include an audible alarm that isselectively actuated to indicate a storm type. Alternatively, the remoteunits may include an visual indicator that may be selectively actuatedto distinguish between a warning alarm and a watch alarm, and/or avisual indicator that is selectively actuated to indicate a storm type.

The weather alert manager may include means for predicting a path of thestorm based upon the meteorological data. For example, the means forpredicting a path of the storm may comprise a NexTrac® computer programfrom Baron Services, Huntsville, Ala., USA.

In accordance with another embodiment of the present invention, a methodfor providing real-time site specific weather information comprises thesteps of receiving meteorological data, and combining the meteorologicaldata with a geographical grid covering a predefined geographic area toproduce a storm profile for a storm identified in the meteorologicaldata, wherein the geographic grid partitions the geographic area into aplurality of cells. The method also includes the step of distributingthe storm profile to a remote unit that is responsive to the stormprofile for presenting real-time site specific weather information. Thestep of combining the meteorological data with a geographical grid toproduce a storm profile may include producing the storm profile with acell number that identifies a cell of the geographic grid that isaffected by the storm. The method may further include the step ofproducing visual and/or audio alarms that can be selectively actuated bythe remote units in response to the storm profiles in order todistinguish between warning alarms and watch alarms, and/or the type ofthe storm (e.g., thunder, hail, tornado, etc.). The method may alsoinclude the step of providing a severity indicator of said storm as apart of said meteorological data. Further, the step of combining saidmeteorological data with a geographical grid covering a predefinedgeographic area includes predicting a path of the storm based upon themeteorological data.

Other features and advantages of the present invention will becomeapparent to one with ordinary skill in the art upon examination of thefollowing drawings and detailed description. It is intended that allsuch additional features and advantages be included herein within thescope of the present invention, as defined by the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention can be better understood with reference to thefollowing drawings. The elements of the drawings are not necessarily toscale, emphasis instead being placed upon clearly illustrating theprinciples of the present invention. Furthermore, like referencednumerals designate corresponding parts throughout the several views.

FIG. 1 is a schematic illustration of a system for distributingreal-time site specific weather information;

FIG. 2 is a block diagram illustrating the architecture andfunctionality of the weather alert manager of the system of FIG. 1;

FIG. 3 is a block diagram of the remote unit of the system of FIG. 1;

FIG. 4 is a flowchart of the operation of the system of FIG. 1; and

FIG. 5 is a flowchart of the operation of block 62 of FIG. 4.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The following description is of the best presently contemplated mode ofcarrying out the present invention. A system for distributing real-timesite specific weather information to multiple users in accordance withthe present invention has many uses in many different contexts, such as,at a golf course, a shopping mall, a school, an office building, or in ahome. The real-time site specific weather information may be distributedby any number of communication mediums such as a wireless network, aland-line telephone network, or a television cable network. Accordingly,the present description of the preferred embodiments is not to be takenin a limiting sense but is made merely for the purpose of describing thegeneral principles of the invention. The embodiments described areprovided so that the disclosure will be thorough and complete, and willfully convey the scope of the invention to those skilled in the art.

I. System Architecture

With reference to FIG. 1, a system 10 for providing real-time sitespecific weather information in accordance with the present invention isillustrated. The system 10 comprises a weather alert manager 12, adistribution network 14, and a plurality of remote units 16. Brieflystated, the system 10 receives meteorological data including weatherinformation for a geographic area which is relevant to one or more ofthe remote units 16. The meteorological data is processed to generatestorm profiles for the storms within the meteorological data. The stormprofiles are distributed to the respective remote units 16 by thedistribution network 14. In response to the storm profiles, the remoteunits provide weather information that is relevant to a specificgeographic area predefined for each remote unit 16. Accordingly, an enduser is able to receive site specific weather information that is highlyrelevant.

An example of a configuration of the weather alert manager 12 isprovided by the block diagram of FIG. 2. The weather alert manager 12includes a site specific program 20 in accordance with the presentinvention. As shown, the weather alert manager 12 is preferablyconfigured as a special purpose computer or other apparatus suitable forexecuting the program code embodied within the site specific program soas to impart the functionality described herein and those otherfunctionalities necessary for the operation of the present invention aswould be obvious to one of ordinary skill in the art. The weather alertmanager 12 further includes a processor 22 that can communicate with theother elements within the weather alert manager 16 via system interface24. An input device 26, for example, a keyboard or mouse, is used toinput data from the user, and a screen display device 28, for example, amonitor, is used to output data to the user. A memory 30 within theweather alert manager 12 contains the site specific program 20 forimparting the functions described herein. In addition, the memory 30includes a conventional operating system 32 that communicates with thesite specific program 20 and enables execution of the site specificprogram 20 by the processor 22. A communication link interface 34 isprovided for interfacing the weather alert manager 12 with other relatedsystems for purposes such as receiving meteorological data ortransmitting storm profiles to the distribution network 14. Lastly, ahard disk 36 is provided as a nonvolatile memory for storing informationsuch as a grid database 38 as described in more detail below.

The weather alert manager 12 is configured to receive meteorologicaldata via communication link interface 34, or alternatively, via manualinput through input device 26. The meteorological data may be providedby a variety of sources, but preferably comprises NexRad attribute data.NexRad is a weather service provided by the National Weather Service(NWS) which employs a system of high powered radars scattered throughoutthe country which collect data that is synthesized for distribution tosubscribers. The NexRad attribute data is distributed by severalproviders which can communicate the data via a satellite downlink orover a communication network connection such as a telephone line.Several of the NexRad providers are: Alden Electronics, Westborough,Mass., USA; UNISYS, Philadelphia, Pa., USA; and Weather ServicesInternational (WSI) Corporation, Billerica, Mass., USA. The NexRadattributes data provides subscribers with detailed informationconcerning storms detected by the NexRad radar sites. The NexRadattribute data may include the following information for each storm:

    ______________________________________                                        ID           A unique 3-digit identifier for the storm.                       AZ           The direction of the storm in degrees from                                    the radar source.                                                RANGE        The distance of the storm in nautical miles                                   from the radar source.                                           TVS          The likelihood of a tornado vortex                                            signature (probably, possible or                                              absolutely).                                                     MESO         The likelihood of mesocyclonic activity                                       probable, possible or absolutely).                               HAIL         The likelihood of hail (probably, possible                                    or absolutely).                                                  DBZM         The maximum DBZ level (a measurement                                          of participation intensity) in the storm.                        FCST.sub.-- ANGLE                                                                          Forecasted movement angle (storm path) in                                     degrees.                                                         FCST.sub.-- MVMT                                                                           Forecasted movement speed in nautical                                         miles                                                                         per hour.                                                        ______________________________________                                    

A feature of NexRad data is that it can be automatically downloaded andprovided to the weather alert manager without human interaction.Further, the different NexRad attributes can be combined to provideother attributes such as storm type, storm width, or storm severity. Forexample, the NexRad attributes TVS, MESO and HAIL may be utilized toprovide an attribute for storm type. As another example, the NexRadattribute DBZM may be utilized to provide an attribute for storm width.As yet another example, the NexRad attributes TVS, MESO, HAIL and DBZMmay be utilized to provide an attribute for storm severity.

In addition, the meteorological data may comprise manually inputtedinformation regarding a storm. Preferably, this information is providedby the emergency management agency (EMA) or another similar entity suchas a local 911 service charged with weather warnings. This allows forhuman reasoning to evaluate the severity of a storm so that factors noteasily considered in an automated system may be considered. Examples offactors that may be considered in such circumstances include the terrainof the local area or the presence of high risk structures in the path ofa storm such as a school or shopping mall. Thus, the storm attributesprovided in the NexRad attributes can be alternatively providedmanually.

The meteorological data received by the weather alert manager 12 isprocessed by the site specific program 20. Particularly, the sitespecific program 20 performs storm tracking functions on the storms thatare identified by the meteorological data, and that are within thegeographic region of interest. Systems capable of performing stormtracking functions, such as those required in the present system, whichare commercially available include the NexTrac® system by BaronServices, Inc., Alabama, USA, or Storm Pro by Kavouras, Minnesota, USA.

There are essentially two methods of performing storm trackingoperations. A first method involves gathering historical data of aparticular storm so that the storm's direction and speed can be derivedfrom the location of the storm at two discrete points in time which arerecorded in the historical data. A direction of the storm can then bedetermined by a direction vector passing through the two locations ofthe storm. The speed of the storm can be determined from the distancebetween the two points and the time that it took the storm to travelbetween the two points. From the direction and speed, the location ofthe storm at some future point in time can be mapped out within anacceptable degree of accuracy. A second method includes retrieving theNexRad attributes FCST₋₋ ANGLE and FCST₋₋ MVMT, and then calculating thestorm's position after a predefined period of time based upon theseattributes, as described in detail below.

Initially, the NexRad attributes RANGE and AZ are utilized to determinea current x coordinate range and a current y coordinate range for thestorm with respect to the NexRad radar site that is tracking the storm.The x and y coordinate ranges can then be utilized with the latitude andlongitude coordinates of the NexRad radar site to determine a truelocation of the storm in latitude and longitude measurements. Thelatitude and longitude of the storm can be combined with the NexRadattributes FCST₋₋ ANGLE (i.e., forecasted direction) and FCST₋₋ MVMT(i.e., forecasted speed) to derive a position of the storm after apredetermined period of time.

In addition to determining a future position of the storm, the stormtracking function of the present invention includes tracking the widthand fanout of the storm. The width can be determined from the NexRadattributes as described above, and the fanout is user defined. Forpurposes of the present disclosure, the fanout of a storm is the rate atwhich the storm track widens from the base of the storm to the end ofthe track. This parameter is preferably set between approximately 10 and20 percent per meter. The fanout is essential an error factor thatallows the future path of the storm to be determined with a greatertolerance. That is, the geographic area over which a storm may travel ismore likely to be within a predicted path that accounts for a 10 percentwidening of the storm as it moves. The fanout can be varied between twoinstances of the storm tracking operation for the same storm to createqualifiers that indicate the likelihood that the storm will affect aparticular cell. These qualifiers are referred to hereafter as presencequalifiers. As an example, a storm tracking operation performed on astorm with 10 percent fanout may result in ten cells that the storm will"probably" cross. If the storm tracking operation were performed asecond time with a fanout of 20 percent, then the results may includetwenty or more cells that the storm may "possibly" cross. Thus, theweather information that can be delivered to the end user at the remoteunit 16 is both relevant and informative.

The site specific program 20 then combines the storm trackinginformation with a geographic grid to determine which location(s) withinthe geographic grid arc affected by the storm. The geographic gridcomprises a geographic region that is divided into a plurality of cellsthat are individually identified by a unique identification number. Eachcell preferably comprises at least one latitude coordinate and onelongitude coordinate, though the size of the cells can be defined by theuser. By comparing the coordinates defining the predicted path of thestorm to the geographic grid on a cell by cell basis, each cell withinthe grid that is affected by the storm can be identified. Furthermore,by running multiple instances of the storm tracking with differentfanout settings, presence qualifiers can be determined for theidentified cells that the storm is currently crossing, probablyapproaching, or possibly approaching.

The site specific program 20 then generates a storm profile for thestorms identified in the meteorological data. The storm profilesgenerated by the site specific program 20 preferably include a stormtype identifier, a severity indicator, and a list of cell numbers andassociated presence qualifiers such as "in this cell," "possiblyapproaching this cell," or "probably approaching this cell." The stormidentifier is provided by the NexRad attribute ID, the severityindicator is either manually inputted by the EMA or automaticallygenerated from one or more of the NexRad attributes, and the cellnumbers and presence qualifiers are determined as described above. Adata structure comprising a storm profile may appear as follows:##STR1## Accordingly, a storm profile is a relatively small amount ofdata that can be transmitted as a serial bit stream to the remote units16 with low overhead on the part of the distribution network 14.

The distribution network 14 is configured to deliver the storm profilesto the respective remote units 16. Because the storm profiles require solittle bandwidth for transmission to the remote units, updated stormprofiles information can be sent out to subscribers at a high frequencyto ensure the weather information is real-time.

Preferably, the storm profiles are distributed according to an addressintegrated in the protocol overhead or the storm profile itself such asin an address field so that the remote units only respond to stormprofiles that particularly identify cells which are associated with thatremote unit 16. This can be accomplished by maintaining an end userdatabase at the weather alert manager 12 that associates each end userto one or more of the cells. Thus, by cross referencing the cell numbersin a profile to a list of end users with associated cells, the specificend users that should be sent a storm profile can be identified. Byidentifying the end user, the remote unit 16 associated with that enduser may be identified. The profiles may then be sent to the end userdirectly in a point-to-point communication utilizing the address.Alternatively, if the remote units 16 are configured to be responsive tospecific address(es), then the profiles may be broadcast to all theremote units. The addresses in this case may be merely the cell numbers,and thereby, eliminate the need to provide a special address field tothe data structure comprising the storm profile. The end user databasemay also identify the means by which the profile is to be sent to thesubscriber (e.g., a cellular phone call with recorded message or a pagerwith an alpha numeric message).

The distribution network 14 can be implemented by a variety of differentcommunication mediums such as, but not limited to, wireless, cabletelevision, pager, land-line telephone, satellite, etc. This flexibilityin the method by which the storm profiles are delivered by thedistribution network is advantageous because it enables the subscriberto chose the most convenient method of delivering the site specificweather information of the present invention. The communication mediumchosen may be based upon pricing tariffs, Federal CommunicationsCommission (FCC) regulations, available technology, or the configurationof the remote unit (as described below). An example of one configurationfor the distribution network 14 is a wireless network that initiates acall based upon a number (i.e., address) that the weather alert manager12 retrieved from a subscriber database. The wireless network then makesa call to the remote unit 16 associated with that wireless telephonenumber for sending a storm profile to the remote unit 16 which processesthe information for presentation to the subscriber in real-time.

The remote unit 16 is configured to receive a storm profile and respondthereto by providing audio and/or visual indicators which conveyrelevant storm information such as the type of storm, the severity ofthe storm, and the relevance of the storm with regard to the location ofthe remote unit 16. The remote unit 16 may be located throughout thegeographic region covered by the geographic grid utilized by the weatheralert manager 12. For instance, the remote units 16 may be located in aprivate home, a public facility such as a shopping mall or golf course,an office building, a school, or even a mobile vehicle such as a bus,taxicab, or plane.

An illustrative example of a configuration of a remote unit 16 isprovided in FIG. 3. As shown, the remote unit 16 comprises acommunication interface 40, a controller 42, a memory 44, an audio/videoindicator mechanism 46, an infrared input/output device 48, an inputdevice 50, and a power supply 52. The communication link interface 40provides an interface to the distribution network 14 for receiving stormprofiles in accordance with the present invention. The storm profilesare provided to the controller 42 which includes the control logic foroperation of the remote unit 16. Briefly stated, the controller 42processes the storm profile by parsing the data structure and makinglogical determinations as to the type/manner of weather information thatwill be provided to the subscriber via the visual/audio indicatormechanism 46. The control 42 may also include control logic fordiscriminating between storm profiles to ensure that the remote unit 16only responds to storm profiles associated with its subscriber. Aspreviously mentioned, this may include identifying an address fieldwithin the storm profile and comparing that with a programmed address,or alternatively, comparing the cell numbers within the storm profilewith programmed cell numbers. On the other hand, the remote unit 16 mayonly receive storm profiles that are specifically addressed to it, andtherefore, the remote unit 16 can process each storm profile it receiveswithout having to evaluate its relevance.

The visual/audio indicator mechanism 46 provides means by which toconvey the site specific weather information in the storm profile to theend user. The visual/audio indicator mechanism 46 may include a speakerdevice for providing audio indication of weather information in the formof distinctive sounds or prerecorded audio messages. In addition, thevideo/audio indicator mechanism 46 may include visual means such as adisplay panel for providing weather information in the form of textualinformation or color-coded lights. The infrared input/output device 48provides the remote unit with the capability of interacting with otherdevices for performing such functions as turning on a television set toa specific channel when particular weather information is provided in astorm profile, or turning on a stereo to a particular channel forreceiving additional weather information in response to particularinformation provided in a storm profile. The input device 50, such as akeypad, provides means by which the controller 42 can be programmed asmay be desired, for instance, if the remote unit 16 is transferred fromone subscriber to another. The power supply 52 provides power to theremote unit 16 for supporting operation thereof. The power supply 52preferably provides proper power conversion capability so that the powersupply may be plugged into a typical 110 volt wall outlet. Preferably,the power supply 52 also provides a battery backup for operating whenthere is a power outage of the power source utilized by the power supply52. Lastly, an external control link may be provided as an alternativeinterface to controller 42 for purposes of programming or providingexternal control from a remote location. This link may comprise, forexample, a dial-up modem connection that allows communication with thecontroller 42 from a remote location through the public switchedtelephone network.

While the remote unit 16 may be configured as illustrated in FIG. 3, thepresent invention also provides for remote units that are integratedinto conventional communication devices such as wireless telephones orpagers. In this context, the distribution network 14 is determined bythe type of remote unit 16. For example, if the remote unit 16 were apager, then the distribution network 14 would be a pager networksuitable for interfacing with the pager remote unit 16. Likewise, if theremote unit 16 is a cellular telephone, then the distribution network 14would be a wireless network suitable for interfacing with the wirelessremote unit 16.

II. Operation

With reference to FIG. 4, the weather alert manager 12 initiallyreceives meteorological data including weather information definingstorms within a relevant geographical area, as indicated by block 60. Atblock 62, the meteorological data is combined with a geographic grid toproduce storm profiles for the storms identified in the meteorologicaldata, as further described with reference to FIG. 5. Next, the stormprofiles are distributed to the remote units 16 via the distributionnetwork 14, as indicated by block 64. The storm profiles are processedat the respective remote units 16 for presentation of real-time sitespecific weather information, as indicated by block 66.

With reference to FIG. 5, the operation described in block 62 (FIG. 4)is described in further detail. Particularly, the current position of astorm identified in the meteorological data is determined, as indicatedby block 70. At block 72, a predicted path of the storm for apredetermined period of time is determined based upon the currentposition of the storm and the forecasted direction and speed of thestorm. It is noted, as discussed above, that the forecasted speed anddirection of the storm may be provided in the meteorological data or maybe determined based upon historical movement of the storm over adiscrete period of time immediately preceding the present location ofthe storm. At block 74, the cells within the geographical area that areaffected according to the predicted path of the storm are determined.This includes the determination of the likelihood of the storm crossingeach identified cell, preferably in terms of a presence qualifier. Next,storm profiles are generated for each storm utilizing the meteorologicaldata and the cells that were determined to be affected by the storm inthe previous steps, as indicated by block 76. The storm profiles arethen distributed as described above.

In the drawings and specification, there have been disclosed typicalpreferred embodiments of the invention and, although specific terms areemployed, they are used in a generic and descriptive sense only and notfor purposes of limitation, the scope of the invention being set forthin the following claims.

That which is claimed is:
 1. A system for providing real-time sitespecific weather information, comprising:a weather alert manager thatreceives meteorological data and combines said meteorological data witha geographical grid covering a predefined geographic area to produce astorm profile for a storm within said geographical area, wherein saidgeographic grid partitions said geographic area into a plurality ofcells; a plurality of remote units, one of said remote units beingresponsive to said storm profile for presenting real-time site specificweather information; and a distribution network for distributing saidstorm profile from said weather alert manager to said one of said remoteunits.
 2. The system of claim 1, wherein said storm profile includes acell identifier that identifies a cell of said geographic grid that isrelated to said storm.
 3. The system of claim 2, wherein said stormprofile further includes a storm identifier, a storm type identifier,and a presence qualifier.
 4. The system of claim 2, wherein said stormdistribution network selectively distributes said storm profile to afirst remote unit associated with said cell based upon an addressidentifying said first remote unit.
 5. The system of claim 4, whereinsaid remote unit is located within said cell.
 6. The system of claim 1,wherein said meteorological data comprises a speed of said storm, alocation of said storm, a direction of said storm, and a storm typeidentifier.
 7. The system of claim 1, wherein said meteorological dataincludes a severity indicator of said storm that is provided by a user.8. The system of claim 1, wherein said meteorological data includesNexRad attributes.
 9. The system of claim 1, wherein said distributionnetwork comprises a land-line telephone network.
 10. The system of claim1, wherein said distribution network comprises a wireless network. 11.The system of claim 1, wherein said distribution network comprises apager network.
 12. The system of claim 1, wherein said distributionnetwork comprises a cable television network.
 13. The system of claim 1,wherein said remote unit includes an audible alarm that can beselectively actuated to distinguish between a warning alarm and a watchalarm.
 14. The system of claim 1, wherein said remote unit includes anvisual indicator that is selectively actuated to distinguish between awarning alarm and a watch alarm.
 15. The system of claim 1, wherein saidremote unit includes an audible alarm that is selectively actuated toindicate a storm type.
 16. The system of claim 1, wherein said remoteunit includes an visual indicator that is selectively actuated toindicate a storm type.
 17. The system of claim 1, wherein said weatheralert manager includes means for addressing said storm profile to enablepoint-to-point distribution to said one of said remote units.
 18. Thesystem of claim 1, wherein said weather alert manager includes means forpredicting a path of said storm based upon said meteorological data. 19.The system of claim 18, wherein said means for predicting a path of saidstorm comprises a computer program.
 20. A method for providing real-timesite specific weather information, comprising the steps of:receivingmeteorological data; combining said meteorological data with ageographical grid covering a predefined geographic area to produce astorm profile for a storm within said geographical area, wherein saidgeographic grid partitions said geographic area into a plurality ofcells; and distributing said storm profile to a remote unit that isresponsive to said storm profile for presenting real-time site specificweather information.
 21. The method of claim 20, wherein said step ofcombining said meteorological data with said geographical grid toproduce said storm profile includes producing said storm profile with acell identifier that identifies a cell of said geographic grid that isrelated to said storm.
 22. The method of claim 20, wherein said step ofcombining said meteorological data with said geographical grid toproduce said storm profile includes producing said storm profile with astorm identifier, a storm type identifier, and a proximity indicatorassociated with said cell identifier.
 23. The method of claim 20,wherein said meteorological data comprises a speed of said storm, alocation of said storm, a direction of said storm, and a storm typeidentifier.
 24. The method of claim 20, further including the step ofmanually providing said meteorological data.
 25. The method of claim 20,wherein said meteorological data includes NexRad attributes.
 26. Themethod of claim 20, wherein said step of distributing said storm profileto said remote unit includes distributing said storm profile utilizing aland-line telephone network.
 27. The method of claim 20, wherein saidstep of distributing said storm profile to said remote unit includesdistributing said storm profile utilizing a wireless network.
 28. Themethod of claim 20, wherein said step of distributing said storm profileto said remote unit includes distributing said storm profile utilizing apager network.
 29. The method of claim 20, wherein said step ofdistributing said storm profile to said remote unit includesdistributing said storm profile utilizing a cable television network.30. The method of claim 20, wherein said remote unit includes an audiblealarm that can be selectively actuated to distinguish between a warningalarm and a watch alarm.
 31. The method of claim 20, wherein said remoteunit includes an visual indicator that is selectively actuated todistinguish between a warning alarm and a watch alarm.
 32. The method ofclaim 20, further including the step of providing an audible alarm bysaid remote unit that is selectively actuated to indicate a storm type.33. The method of claim 20, further including the step of providing avisual indicator that is selectively actuated to indicate a storm type.34. The method of claim 20, wherein said step of combining saidmeteorological data with said geographical grid includes predicting apath of said storm based upon said meteorological data.